Improvement in nut-locks



H. c. LOWE;

. Nut-Lacks. I N0. 142,858, Patented Septemb r 1 6.1873.-

UNITED STATES PATENT OFFICE.

@HOMARID e. LOWE, onnonzrnnnsm, MARYLAND, Asslanon T0 HIMSELF ANILJQHN B; HALEY, on SAME PLACE;

Specification forming part or Letter: PatentNo. 142,85Q, dated September 16, 1873; application filed March 15, 1873. I

To all whom it may concern: 7

Be it known that 1, 110mm 0.1 Down, of

- Northeast, in the county of Qec'iland Statev of Maryland, have invented a n'e'w andl I'm-,

projve'd- Combination Washer and Nnt Locltf of which the foll'owi-ngis a'speciflcation:

In the drawing, Figure 1 represents a plan view of my combination washer and nut-lock.

. Fig. 2 is a side elevation of the same; and Fig.

3, a detail view of the washer-cross.

. Myinvention is'an improvement in the classv ofnut-ldcks in which a metal plate'is'placed in a suitable recess or groove of the washer of the nut, and. its ends bent up against the sides of .the latter. The improvement relates to the combination of a washer provided with projections on itsfun'der side, and two straight grooves in its face, (the same crossingeach other at right angles and a sheet-metal lockin g.-plate, whose form is that of a Latin cross, to adapt it to fit insaid grooves, and thus form a dou-ble'lock for the nut, as hereinafter d'e'scribed.-

A is the material ta which-a6 1501a B are applied. The washers are provided wi h Project-ions a, fitting.into'eorresponding recesses of the wood or iron to which they are applied. .iproviflethe washers attheirupper sid'eswith grooves b,;in the shape of'a crossfwhich admits the metallic cross-piece- D, Fig. 3.

To secure the nuts Gr' rigidly-to bolts B, two,

opposite wings of cross-piece, D, are turned, up against the side of the nut.

I do not claim a washer providedwith pro -je'ctions, nor'with grooves to receive alcohing-plate; but

V ,I'claim-- 1 The-combination of the cross shaped sheet metal plate D 'with the: correspondinglygrooved washer 0, having projections a a on 'its under side, all as-shown and described. a Y HOMARD O; LOWE.

. Witnesses:

J. IRVIN WHITE, (3. 0.. BENJAMIN. 

